This article has been retracted at the request of the Editor in view of the recommendation of Justus Liebig University (JLU) that papers published by Dr. Boldt be retracted due to inconsistencies in scientific integrity and falsified data. A JLU statement on the scientific credibility of articles published by Dr. Joachim Boldt can be found at https://ars.els-cdn.com/content/image/1-s2.0-S000709122030163X-mmc3.pdf